Multiplying challenging decimals | Decimals | Pre-Algebra | Khan Academy

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Sometimes multiplying really small decimals (with all those zeros!) can be a little intimidating. Watch as we show you a handy trick to simplify these problems and solve them.

Missed the previous lesson?

Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off!

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great site, and I am 10 soo it is very helpful with dividing decimals. thanks Khan!!

matiasmorales

Thank you so much 😊 ❤
It is so helpful for me ❤

مريمأبوالهيجاء-مق

This helped me so much when I was in 5th-grade. Thanks!

mannyyz

Great explaining Love your teaching aspect :)

sparkle_girl

dude you're gonna save me from my math quiz.You didn't give me a headache and you were very slow to catch up so good job man!

destroyer-tzmk

Thank you soo much for this explanation. I was so confused before, now I understand it perfectly. Thank you for your help

Dk

Thank you for this explanation and helps me get a better grasp of multiplying decimals

richardcrawford

Thanks a bunch. That is really cool and you are very helpful. :) :) :)

stargrooves

Now I understood so, we have to change the decimals into whole numbers and multiply them and then look at the sum adn see how many are after the decimal point for the two numbers and place them to the answer

funzone